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January 2000
3
MIC2525
MIC2525
Absolute Maximum Ratings
(Note 1)
Supply Voltage (V
IN
) .....................................................+6V
Fault Flag Voltage (V
FLG
)..............................................+6V
Fault Flag Current (I
FLG
) ............................................50mA
Output Voltage (V
OUT
) ..................................................+6V
Output Current (I
OUT
)............................... Internally Limited
Control Input (V
EN
).........................................
–
0.3V to 12V
Storage Temperature (T
S
) .......................
–
65
°
C to +150
°
C
Lead Temperature (Soldering 5 sec.) ....................... 260
°
C
ESD Rating,
Note 3
......................................................2kV
Micrel
Electrical Characteristics
V
IN
= +5V; T
A
= 25
°
C; unless noted.
Parameter
Condition
Min
Typ
Max
Units
Supply Current
Note 4
, switch off, OUT = open
0.75
5
μ
A
Note 4
, switch on, OUT = open
110
160
μ
A
Enable Input Threshold
low-to-high transition
2.1
2.4
V
high-to-low transition,
Note 4
0.8
1.9
V
Enable Input Current
V
EN
= 0V to 5.5V
–
1
±
0.01
1
μ
A
Enable Input Capacitance
1
pF
Switch Resistance
V
IN
= 5V, I
OUT
= 500mA
V
IN
= 3.3V, I
OUT
= 500mA
R
L
= 10
each output
R
L
= 10
each output
R
L
= 10
each output
R
L
= 10
each output
output disabled
100
140
m
140
180
m
Output Turn-On Delay
0.5
ms
Output Turn-On Rise Time
1
ms
Output Turnoff Delay
1
20
μ
s
Output Turnoff Fall Time
1
20
μ
s
Output Leakage Current
10
μ
A
Continuous Load Current
0.5
A
Short-Circuit Current Limit
enable into load, V
OUT
= 4.0V
ramped load applied to enabled output, V
OUT
≤
4.0V,
Note 5
T
J
increasing
T
J
decreasing
V
IN
= 5V, I
L
= 10mA
V
IN
= 3.3V, I
L
= 10mA
V
FLAG
= 5V
V
IN
= increasing
V
IN
= decreasing
0.5
0.75
1.25
A
Current-Limit Threshold
1.6
2.2
A
Overtemperature Shutdown
Threshold
135
°
C
125
°
C
Error Flag Output Resistance
10
25
15
40
Error Flag Off Current
0.01
1
μ
A
UVLO Threshold
2.5
V
2.3
V
Note 1.
Note 2.
Note 3.
Note 4.
Exceeding the absolute maximum rating may damage the device.
The device is not guaranteed to function outside its operating rating.
Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.
Off is
≤
0.8V and on is
≥
2.4V for the MIC2525-1. Off is
≥
2.4V and on is
≤
0.8V for the MIC2525-2. The enable input has approximately
200mV of hysteresis. See control threshold charts.
See
“
Functional Characteristics: Current-Limit Response
”
photo.
Note 5.
Operating Ratings
(Note 2)
Supply Voltage (V
IN
) ...................................... +3V to +5.5V
Ambient Operating Temperature (T
A
) ........
–
40
°
C to +85
°
C
Thermal Resistance
SOIC (
θ
JA
).........................................................120
°
C/W
DIP(
θ
JA
).............................................................130
°
C/W